Pioneer AVIC-Z2/XU/UC Service Manual page 167

1
Check 5: Is the video circuit operated normally?
Reproduce DVD-REF-A1 Title 2 Chapters (White 100IRE).
A Monitor the output with the oscilloscope, by setting the COMPO signal to a GND reference.
Set the Trigger mode to the TV trigger, and the Trigger line to line-150.
NO. Verification location Rated value
(sensing pin)
1 COMPO
If the result is not satisfactory, check to see if there are any problems with resin flux cored solder, parts
and components, in the vicinity of line-150 (the section marked 5 in the circuit diagram) and peripheral components.
B
COMPO signal
Pedestal
C
D
E
F
160
1
2
Reference
waveform
1.0±0.05Vpp Waveform 5
Color burst
Horizontal periodic signal
Composite signal 100% output waveform
2
3
PEAK
Rated
value
BOTTOM
AVIC-Z1/UC
3
4
When the result is not satisfactory,
adjust the noise level to 1.0 + 0.05 Vpp.
4